| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain an earthquake detector which can readily and promptly carry out adjusting works, leveling works for calculation parameters etc., in the installation site. SOLUTION: This earthquake detector comprises a semiconductor acceleration sensor 30, a calculation process circuit 40, an explosion-proof case 20, a loader connection terminal connected to a portable type setter 90 for communication, and it is possible to readily and promptly carry out correction works of the earthquake detector at a site by communicating via the portable type setter 90. Further, in order to readily correct by applying a predetermined gravity acceleration on the semiconductor acceleration sensor 30, the blowup case 20 is provided with a first plane part parallel to an XY plane of the semiconductor acceleration sensor 30 and a second plane part vertical to the XY plane.</p> |
